RAM sticks that are 16GB each are dual rank, so far I have only been able to run mine at 3066MHz stable.
I have not seen anyone with dual rank memory being able to run them higher than this, so far only single rank memory that can run at 3200MHz or higher regardless of UEFI version,

I've got 4 x 16GB DR and I've been running at 3200MHz 15-15-15-34 2T (1000% Memtest) stable for the last 2 BIOS' up to 801 (not flashing to 901 yet). I think I can get 14-14-14-32 stable (some random errors) but I need more time.

I haven't tried running higher frequency than this though since the very early BIOS' that wouldn't post.

Memtest/[email protected] was pretty much back to back, rig once not loaded no fan issues.

Although even with latest AIDA64 v5.95.4512 I can have SuperIO chip going freaky within few hours . Even when I untick monitoring within it. When this issue occurs PWM can be stuck at (x)% or worst case seems to conk out IMO which can mean my water pump is at 800 rpm = high temps in loop if CPU/GPU both loaded heavily.

Note at ~3hrs Waterpump is ~2k rpm and 30min later PWM has conked out = 800 rpm .

Only snag I seem to be having is can't seem to have Local RAM mode . Profile apply but current will always show no change occurred, even if reboot/restart app, etc. SMT Off works, not tried anything else other than shown.

I just want to report that the 0901 beta BIOS was the only BIOS that got me up and running with all 8 sticks of RAM. After wasting about 30 hours of my life debugging pointlessly with the other BIOS I tried the beta and it fired right up. Only problem is the little QLED screen is stuck on some error code about a HDD that I don't even have but at this point I'll take it since my $2500 system is finally operating. Perhaps the final version of this BIOS will get even better, but in reality its probably a 50/50 shot that the "final" version of this BIOS will again cripple my system...

Memtest/[email protected] was pretty much back to back, rig once not loaded no fan issues.

Although even with latest AIDA64 v5.95.4512 I can have SuperIO chip going freaky within few hours . Even when I untick monitoring within it. When this issue occurs PWM can be stuck at (x)% or worst case seems to conk out IMO which can mean my water pump is at 800 rpm = high temps in loop if CPU/GPU both loaded heavily.

Note at ~3hrs Waterpump is ~2k rpm and 30min later PWM has conked out = 800 rpm .

Only snag I seem to be having is can't seem to have Local RAM mode . Profile apply but current will always show no change occurred, even if reboot/restart app, etc. SMT Off works, not tried anything else other than shown.

All in all no idea why your rig is stuck with disabled cores .

I am going with gremlins now as I have run out of ideas. What bothers me the most is everything was working just fine I would do exactly what you are showing (enable and disable cores) with no problems then out of the blue I get stuck. Your bios setting lets me turn the cores back on but booting any OS hard locks with a thread count higher than eight. Not just my original windows install but ubuntu on a usb drive or the windows install media all hard lock over 8 threads. Memtest though boots right up will all 32 threads and runs with no errors so I am left just baffled. I have opened a ticket with ASUS support and will start an RMA on the board after that the only other thing it could be would be the cpu.

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